Comparable stake leader
5AM Ventures VI, L.P.
SEC ownership of Camp4 Therapeutics Corp
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001736730.
Disclosed value leader
Janus Henderson Group Ltd.
Comparable rows
50/50
Latest evidence
31 Mar 2026
- Public ticker
- CAMP on Nasdaq
- Parsed ownership sources
-
13D/G, 13F, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
5AM Ventures VI, L.P.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
5AM Ventures VI, L.P.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
31 Mar 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001736730
- Issuer location
- Cambridge, MA
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Camp4 Therapeutics Corp (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
5AM Ventures VI, L.P.
Disclosed value leader
Janus Henderson Group Ltd.
Comparable rows
50/50
Latest evidence
31 Mar 2026
13D/G
13F
3/4/5
Lead comparable stake: 12%
13D/G row: 5AM Ventures VI, L.P.
Showing 1-8 of 50 holder rows.
Quick read
5AM Ventures VI, L.P. leads the comparable SEC ownership view at 12%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens 5AM Ventures VI, L.P.'s linked filing trail.
Comparable ownership
Top 5
5AM Ventures VI, L.P.
12%
Janus Henderson Group Ltd.
12%
Coastlands Capital LP
10%
FMR LLC
9.5%
Polaris Management Co. VII, L.L.C.
8.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| 5AM Ventures VI, L.P. |
13D/G
Andrew J. Schwab
|
12%
|
$8,392,800
5,869,091 shares
|
$0 | 09 Sep 2025 |
| Janus Henderson Group Ltd. |
13D/G
13F
JANUS HENDERSON GROUP PLC · Company
|
12%
|
$37,908,892
6,307,636 shares
|
$0 | 31 Dec 2025 |
| Coastlands Capital LP |
13D/G
|
10%
|
$21,452,710
4,886,722 shares
|
$0 | 10 Sep 2025 |
| FMR LLC |
13D/G
13F
Company
|
9.5%
|
$28,968,451
4,918,243 shares
|
+$10,440,496 | 31 Dec 2025 |
| Polaris Management Co. VII, L.L.C. |
13D/G
3/4/5
Amir Nashat · 10%+ Owner
|
8.4%
|
$5,623,119
3,932,251 shares
|
$0 | 09 Sep 2025 |
| Vivo Opportunity Fund Holdings, L.P. |
13D/G
|
7.4%
|
$23,373,365
3,856,991 shares
|
+$1,788,900 | 31 Dec 2025 |
| BALYASNY ASSET MANAGEMENT L.P. |
13D/G
13F
Company
|
5.1%
|
$11,819,642
2,632,437 shares
|
$0 | 31 Mar 2026 |
| Enavate Sciences GP, LLC |
13D/G
3/4/5
13F
10%+ Owner · Company
|
4.8%
|
$10,955,517
2,495,562 shares
|
-$2,773,593 | 09 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$8,554,994.
Buys
$8,554,994
Insiders: 7
Sells
$0
Insiders: 0
Net
+$8,554,994
Shares: +5,588,885
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 5,588,885
Shares: 0
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 0 | $0 | $0 | $0 |
| 6-9 | 0 | 0 | $0 | $0 | $0 |
| 9-12 | 5,588,885 | 0 | $8,554,994 | $0 | +$8,554,994 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 23 reporting-owner rows connected to Camp4 Therapeutics Corp. Open a relationship link for the CIK-to-CIK filing trail.
Rows
23
Largest Forms 3/4/5 holder
Andrew J. Schwab
Net 12M change
+$8,554,993
Latest report
10 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Andrew J. Schwab | Director, 10%+ Owner | $8,686,917 | Mixed | 10 Jun 2026 | ||
| 5AM Partners VI, LLC | 10%+ Owner | $8,686,917 | +$4,499,999 | +107% | Mixed | 11 Sep 2025 |
| Josh Mandel-Brehm | Chief Executive Officer, Director | $459,388 | +$9,999 | +2.2% | Filing P/S | 01 Apr 2026 |
| Amir Nashat | Director, 10%+ Owner | $302,421 | +$1,999,999 | +661% | Filing P/S | 10 Jun 2026 |
| Polaris Management Co. VII, L.L.C. | 10%+ Owner | $302,421 | +$1,999,999 | +661% | Filing P/S | 11 Sep 2025 |
| Richard A. Young | Director | $280,516 | +$24,999 | +9.8% | Filing P/S | 10 Jun 2026 |
| Kelly Gold | Chief Financial Officer | $111,997 | +$9,999 | +9.8% | Filing P/S | 01 Apr 2026 |
| Yuri Maricich | Chief Medical Officer | $9,999 | +$9,999 | +100% | Filing P/S | 01 Apr 2026 |
| Polaris Partners GP X, L.L.C. | 10%+ Owner | Mixed | 15 Oct 2024 | |||
| Northpond Ventures II GP, LLC | 10%+ Owner | Mixed | 15 Oct 2024 | |||
| Enavate Sciences GP, LLC | 10%+ Owner | Mixed | 15 Oct 2024 | |||
| Murray Stewart | Director | Mixed | 10 Jun 2026 | |||
| Douglas E. Williams | Director | Mixed | 10 Jun 2026 | |||
| Daniel Tardiff | Chief Scientific Officer | Mixed | 01 Apr 2026 | |||
| Steven H. Holtzman | Director | Mixed | 10 Jun 2026 | |||
| Michael F. MacLean | Director | Mixed | 01 Apr 2026 | |||
| James P. Boylan | Director | Mixed | 25 Jun 2025 | |||
| Ravi I. Thadhani | Director | Mixed | 25 Jun 2025 | |||
| Paula Ragan | Director | Mixed | 25 Jun 2025 | |||
| Michael J. Higgins | Director | Mixed | 25 Jun 2025 |
Recent insider transactions for Camp4 Therapeutics Corp
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Douglas E. Williams | CAMP | Stock Option (Right to Buy) | Award | 28,000 | 28,000 | 10 Jun 2026 | Direct | |||
| Richard A. Young | CAMP | Stock Option (Right to Buy) | Award | 28,000 | 28,000 | 10 Jun 2026 | Direct | |||
| Andrew J. Schwab | CAMP | Stock Option (Right to Buy) | Award | 28,000 | 28,000 | 10 Jun 2026 | Direct | |||
| Steven H. Holtzman | CAMP | Stock Option (Right to Buy) | Award | 28,000 | 28,000 | 10 Jun 2026 | Direct | |||
| Murray Stewart | CAMP | Stock Option (Right to Buy) | Award | 28,000 | 28,000 | 10 Jun 2026 | Direct | |||
| Amir Nashat | CAMP | Stock Option (Right to Buy) | Award | 28,000 | 28,000 | 10 Jun 2026 | Direct | |||
| Daniel Tardiff | CAMP | Stock Option (Right to Buy) | Award | 170,000 | 170,000 | 01 Apr 2026 | Direct | |||
| Yuri Maricich | CAMP | Stock Option (Right to Buy) | Award | 215,000 | 215,000 | 01 Apr 2026 | Direct | |||
| Kelly Gold | CAMP | Stock Option (Right to Buy) | Award | 215,000 | 215,000 | 01 Apr 2026 | Direct | |||
| Josh Mandel-Brehm | CAMP | Stock Option (Right to Buy) | Award | 580,000 | 580,000 | 01 Apr 2026 | Direct | |||
| Michael F. MacLean | CAMP | Stock Option (Right to Buy) | Award | 56,000 | 56,000 | 01 Apr 2026 | Direct | |||
| Daniel Tardiff | CAMP | Stock Option (Right to Buy) | Award | 145,500 | 145,500 | 11 Dec 2025 | Direct | |||
| Yuri Maricich | CAMP | Stock Option (Right to Buy) | Award | 190,000 | 190,000 | 11 Dec 2025 | Direct | |||
| Kelly Gold | CAMP | Stock Option (Right to Buy) | Award | 190,000 | 190,000 | 11 Dec 2025 | Direct | |||
| Josh Mandel-Brehm | CAMP | Stock Option (Right to Buy) | Award | 425,000 | 425,000 | 11 Dec 2025 | Direct | |||
| Andrew J. Schwab | CAMP | Common Stock | Award | 2,941,176 | 2,941,176 | 11 Sep 2025 | By 5AM Ventures VII, L.P. | |||
| 5AM Partners VI, LLC | CAMP | Common Stock | Purchase | $4,499,999 | $1.53 | 2,941,176 | 2,941,176 | 11 Sep 2025 | By 5AM Ventures VII, L.P. | |
| Polaris Management Co. VII, L.L.C. | CAMP | Common Stock | Purchase | 86.1% | $1,999,999 | $1.53 | 1,307,189 | 2,825,500 | 11 Sep 2025 | See footnote |
| Amir Nashat | CAMP | Common Stock | Purchase | 86.1% | $1,999,999 | $1.53 | 1,307,189 | 2,825,500 | 11 Sep 2025 | See Footnote |
| Yuri Maricich | CAMP | Common Stock | Purchase | $9,999 | $1.65 | 6,060 | 6,060 | 11 Sep 2025 | Direct | |
| Kelly Gold | CAMP | Common Stock | Purchase | 9.8% | $9,999 | $1.65 | 6,060 | 67,877 | 11 Sep 2025 | Direct |
| Josh Mandel-Brehm | CAMP | Common Stock | Purchase | 2.23% | $9,999 | $1.65 | 6,060 | 278,417 | 11 Sep 2025 | Direct |
| Richard A. Young | CAMP | Common Stock | Purchase | 9.78% | $24,999 | $1.65 | 15,151 | 170,010 | 11 Sep 2025 | Direct |
* marks a reported price that did not pass the local price check.